#cummingtonite

[mimosa-sex-tea-people-contrsf]

Tumblr Sexy Rock Contest Round 2

Cummingtonite

Amber

Voting ended onAug 3, 2025

[letstalkrocks]

Today’s Specimen: Cummingtonite

Cummingtonite is a magnesium dominant compound classified as a monoclinic amphibole (referring to needle-like crystalline formations). The mineral was originally found in 1824 in Cummington, USA, but has been a frequent topic of discussion for geologists as recent as 1978, when chemical analyses were (officially) conducted and published. Cummingtonite can be found in shades of dark green, brown, or grey, as well as colourless. These specimens can be extracted from mines in the United States, Scotland, South Africa, Sweden, Japan, Norway, and New Zealand. In order for this mineral to form, it requires a certain environment of magnesium-abundant rocks under significant pressure, causing it to recrystallize. It is often found amongst other metamorphic minerals, like talc or serpentine. Cummingtonite has a hardness of approximately 5.0-6.0 on the Moh’s scale.

You may now giggle at the name.

Stay tuned for another rock talk!

[fieriframes]

[Cummingtonite.]

[phoronopsis]

[touches "protected article" icon] something terrible happened here...

[oak-ills]

thinking about hit song 'cummingtonite'

[kenny-the-blink]

I still get jump scared when I get a call bc when I do it's just

"THIS ONE GOES OUT TO MOG, MERCEDES OAK GARCIA"

[colourpickingpride]

Maverique from Cummingtonite

[weird-middle-school-books]

sometimes you just have to do something to bring yourself a bit of joy in these hard times…

today I subscribed to the dungeons and daddies patreon (at the lowest tier) and right now I’m listening to Cummingtonite and the sun is shining on my face like this moment was sculpted by God and Will Campos himself to make sure that I live another day in happiness on this rock we call earth